Self loading and discharging bucket



( ModeL) I 3 SheetsShet 1. E. BARRETT. SELF LOADING AND'DISUHARGING BUCKET No. 539,749. Patented May 21 1895.

(No Model.) 3 sneete -sneet 2.

ELBARRETT. SELF LOADING AND DISGHARGING BUCKET.

No. 539,749. Patented May 21, 1895.

(No Model.) 7 3 Sheets-Sheet 3.

E. BARRETT.

SELF LOADING AND DISGH'ARGINGBUGKET. N0.'539,749. Patented May 21, 1895.

E5555- I I IIEIK.

, STATES PATENT OFFICE.

SELF LOADING AND DIYSCHARGING BUCKET.

SPECIFICATION forming part of Letters Patent No. 539,749, dated May 21, 1895.

Application filed December 31, 1894.. Serial No. 533,396- (No model.)

To aZZ whom, it may concern:

Be it known that I, EDWARD BARRETT, of Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Self Loading and Discharging Buckets, of which the following" emptying operations are concerned, and it has for its object to produce a device of a strong and durable character, which shall be compact and comparativelylight, and yet possess sufficient heft as to perform its functions in a perfect manner, and which shall not be liable to get out of order, which is the case with most of the devices for a like purpose at present in use.

The invention consists of certain new and and improved features of construction and arrangement of parts, all as is hereinafter more fully set forth. in the specification, and the novel features of which are particularly pointed out and clearly defined in the claims at the close thereof.

In the accompanying drawings I have shown my device in the best form now known to me, and in which Figure 1 is a perspective of my device in its opened or extended position. Fig. 2 is an end elevation of the same in its closed or contracted position. Fig. 3 is a view similar to that shown in Fig. 2, but with the parts thereof arranged in the position they would assume in emptying or discharging the contents thereof.

The description of that form of my device shown in the accompanying drawings is as follows:

The vessel or bucket consists of two members or halves A A, whose sides constitute preferably segments of a circle when viewed as in Fig. 2, and from the adjacent corners project lugs a, a, a, a, through which passes a cross rod 1) upon which the said lugs and be employed. A frame 0 projects upwardly from the cross rod 1), and through a holed located in the top of said frame 0 extends a' chain e having the lower end thereof secured to the cross rod b and the upper end thereof secured to the lower extremity of an upwardly extending rod f to the upper end of which may be secured a cable f, or the like, by means of which the device may be raised or lowered as is hereinafter described. All strain or tension. exerted by the weight of the device itself or together with the weight of the material it may have to carry is borne by the cross rod 5, chain c and the connection fand the cable or the like by means of which the device is raised or lowered.

At B is a circular frame that encircles the connection f, which is provided with a cross bar or rod g upon which is rigidly mounted a bracket h. The said bracket serves as a guide for the connection f and allows of unimpeded movement of the same vertically with relation thereto and to theframe B.

Atjjjj are rods pivoted or hinged at one end to the cross bar 9 and at the other to the outer and upper edges of the two members A A of the bucket or receptacle, in such a manner that when the frame B be moved vertically with relation to the said bucket or receptacle, the members A A thereof Will be swung upon the cross rod 1) and thrust together or drawn apart as the case may be. It will thus be evident that by moving the frame B vertically with relation to the bucket or receptacle the latter maybe opened or closed as desired.

The normal position of the bucket or receptacle is closed and in order to sustain the members A A in their extended or open position, which position they should assume when the device is descending, and is brought into contact with the material to be loaded in the bucket, I provide a frame 0 which extends downwardly from the cross rod 9 of the frame B and which is adapted to swing freely therefrom, and as will be evident, will tend to assume a vertical position when hanging free. The frame 0' is located immediately above the lower frame 0 and the free ends of said frames are adapted to abut in such a manner as that the frame B will be held in such a position relatively to the bucket or receptacle that the members A A thereof will be held apart or open by means of the connecting rods or links j j j j, as will be clear from reference to Fig. l of the drawings.

At 0 is what I shall designate a trip-lever attached in a convenient position near the upper end of the rigid connection f and in effect integral therewith although in the accompanying drawings I have shown the same bent to form an elbow at which point the said trip-lever O is pivoted at to a bracket Z mounted adjustably upon the connection f and having the upwardly projectingportion 7' thereof united with the upper end of the connection f by means of a chain 101. or its equivalent. The trip-lever 0 projects downwardly at an angle to the connectionf upon which it is mounted and is provided at its lower end with a weight 0. So long as the cable, the connection f and chain e are under tension or supporting a weight carried by the bucket or receptacle, the said parts will be in vertical alignment, the frame 0 also at the same time being held in a vertical position by means of chain c. If the tension be removed from these parts the tendency of the weighted trip-lever G will be to assume a vertical position,drawing that portion of the connection f whichis located above the pivot is in one direction and. thrusting the lower end in the opposite direction, tripping frame a, to one side from beneath, and out of vertical alignment with the frame 0'.

At D is shown an auxiliary frame located in a convenient position at the point at which it is desired to empty the vessel or bucket and adapted by engagement with the frame B of the parts heretofore described to assist in dumping the bucket. The frame consists of two horizontal arms D, one of which is shown in dotted lines in Fig. 3 of the drawings, placed at a suitable distance apart, and mounted upon any suitable support. When the vessel or bucket reaches the elevation of the arms D it is guided in between the said arms in such manner that when lowered slightly the frame B will rest thereon and be moved upwardly with relation to the receptacle and draw the members A A apart and discharge the contents thereof, at which time the device and its parts will assume the position shown in Fig. 3.

In order that the frame B may be presented in a horizontal position to the auxiliary frame constituted by the arms D, I provide chains 10 or their mechanical equivalents which, when the device is in its normal position, hold the frame horizontal and prevent its swinging or tilting upon the cross bar 9.

In the operation of emptying the contents of the bucket, the lower end of the upper frame 0' is drawn up past the upper end of the frame a into vertical alignment with the latter, so that when the device is freed from the arms D, it tends to assume its normal position, and the frame B descends carrying the frame 0 with it until the latter abuts against the lower frame 0 when the frame B will be arrested in its descent and the members A A prevented from closing. The device is then lowered for reloading. As soon as the members A A rest upon the ground or pile of material being transported, the cable slackens, allowing the weighted trip-lever O to assume a vertical position, thus thrusting the lower end of the connectionf to one side and tripping the frame 0 from beneath the frame 0'.

As soon as the cable or the like tends to raise the device the frame 13 will descend by gravity forcing the members A A together, and at the same time the said members will scoop up the material to be transported as they close thus automatically reloading the device.

Should the force exerted upon the members A A by the weight of the frame 13 which is transported through connections or links j j jj to the members A A be insufficient to properly reload the device, the said frame B may be pressed or held down in any suitable manner so as to force the said members into the material, but in most cases this has been found unnecessary, as the frame 13 can be constructed of sufficient weight to accomplish this result.

In practice I have found it desirable in some cases to construct my device in such a man'- ner as to enable it to be filled more effectually by hand instead of automatically as heretofore described. The construction heretofore described although allowing of its being manipulated by hand, is especially constructed and adapted to be filled and discharged automatically.

The construction of a modified form of my device which would be adapted to be filled by hand would be similar to that hereinbefore described, with the exception that frames 0 and 0' together with the trip lever O, and chain e are eliminated and in lieu thereof the rod f is secured at its lower'end directly to the cross rod 1) and extends upwardly therefrom through the guide h of the frame B and has attached at its upper end the lower extremity of the cable or the like f as in the form of my device previously described. I have not considered it necessary to show in the drawings this modified form of my device insomuch as it is substantially similar to the form shown and described except that portions thereof are eliminated as described.

It will be evident that the modified form of' my device may be operated to discharge its contents by hand if desired, but I prefer to effect this operation, in the case of both forms of my device in the manner previously described in connection with the preferred form.

The modified form of my device is manipulated in the same manner as in the preferred form excepting as the device in descending approaches the material it is desired to transport, the bucket or receptacle is opened by raising the frame B and as soon as it rests upon the said material, the frame B is forcibly lowered by hand, thus thrusting the members A together, and at the same time refillingthe bucket or receptacle by scooping up the coal, earth, or other material, as the members A close together.

I do not desire to limit myself to the mere mechanical details of construction herein set forth, as it will be obvious that they may be.

substituted by mechanical equivalents with out departing from my invention.

Heretofore in the use of devices of a like character to that described it has been necessary to employ the attention of two or morepersons, or at least, one to attend to the refilling and one to attend to the emptying of the bucket or receptacle. In the use my device the expense is materially reduced inso-- much as the only attention necessary to be given to my device is in transporting it from one locality to another.

In the modified form it is necessary to em ploy only the attention of one person in effecting the filling of the receptacle. This, however, is less expensive than is the case with other forms now in use.

Having thus explained the nature of the invention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made or all of the modes of its use, it is declared that what is claimed is 1. A bucket or vessel comprising in its construction a two part receptacle having the members thereof pivoted toa cross bar, a lifting rod connected to and extending upwardly from said cross bar, avertically movable ring surrounding said lifting rod, a cross bar'extending across said ring or frame and provided with a guide for the lifting rod, and connections intermediate of the movable ring frame and the outer edges of the members of the receptacle whereby the latter can be opened or closed by moving the said frame vertically, substantially as described.

2. A bucket or vessel comprising a two part receptacle having the members thereof pivoted to a cross bar, a lifting rod flexibly connected with the cross bar, a frame pivotally mounted on the said cross bar and adapted to be engaged by the flexible connection between the bar and lifting rod, a vertically movable frame arranged above the receptacle and provided with a central guide for the lifting rod, rods connecting said frame with the outer edges of the members of the recep-t apart, substantially as described.

3. A bucket or vessel comprising in its construction a two part receptacle having the members thereof pivoted to a cross bar; a rod projecting upwardly from said cross bar and secured thereto by a flexible connection; a swinging frame pivotally mounted upon said cross bar and adapted to be engaged by said flexible connection; a vertically movable frame located above the receptacle; connections intermediate the movable frame and the outer edges of the members of the'receptacle; and a depending frame pivotally mounted upon the said movable frame, adapted to en-' 80 gage the lower swinging frame for the pur poses and substantially as described.

4. A bucket or vessel comprising in its construction a two-part receptacle having the members thereof pivoted to'a cross-bar; a rod projecting upwardly from said cross-bar and secured thereto by a flexible connection; a weighted trip-lever secured at the upper 7 end of said rod; a swinging frame pivotally mounted upon the said cross bar and adapted to be engaged by the said flexible connection; a vertically movable frame located above the receptacle; connections intermediate the movable frame and the outer edges of the members of the receptacle; and a depending frame pivotally mounted upon the said movable frame adapted to engage the lower swinging frame for the purposes and substantially as described.

5. A self filling and emptying bucket or vessel for use in connection with an auxiliary frame, the said bucket or vessel comprising in its construction a two-part receptacle having'the members thereof pivoted to a cross bar; a rod projecting upwardly from said cross-bar and secured thereto by a flexible. connection; a weighted trip-lever secured at the upper end of said rod; a swinging frame pivotally mounted upon the said cross-bar and adapted to be engaged by the said flexible I r 0 connection; avertically movable frame located above the receptacle; connections intermediate the movable frame and the outer edges of the members of the receptacle; and a depending frame pivotally mounted upon 1:5 the said movable frame for the purposes and substantially as set forth. In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 28th day of November, A. D. 1894..

' EDWARD BARRETT.

Witnesses:

HELEN A. ARNOLD,

MARCUS G. B. SWIFT. 

